October ultramarathons in Florida, United States

50K on the Croom Hiking Trail through longleaf pine forest, scrub oak hills, creek bottoms, and cypress ponds in central Florida

Flat 5K out-and-back loops on the tree-lined Cecil Field Recreational Trail, with Tent City access and a fixed-hourly-start 50K format

Urban team run between Jacksonville Wawa stores, item collection and community support with relaxed, non-competitive routes

Multi-loop trail course in Robinson Preserve with sand and shell underfoot, coastal Florida views, wildlife, and a deceptively challenging 50k.

Minimalist, point-to-point 50K along the Florida National Scenic Trail, traversing untamed wilderness with no aid stations and limited support

One-mile campus loops every 30 minutes for 24 hours, passing college landmarks and returning to the baseball field for rest and recovery between laps.

Scenic loops through San Felasco Hammock Preserve's mesic forests, open fields, single-track and double-track trails, rolling hills, and diverse terrain

Four-loop 50K on shaded singletrack along the Mala Compra Greenway Trail, with ocean views and a bonus scenic section on the first lap.